Exploring Wi-Fi WPA2 KRACK Vulnerability: A Review Paper

Wi-Fi networks are preferred by many businesses and organizations since they save money on wiring and give staff more flexibility. organizations and people are becoming more concerned about security as more Wi-Fi connected networks go online. Wireless networks are sometimes assumed to be inherently insecure, allowing unauthorized access to data being transferred. While many wireless network security solutions have been developed, protocol weaknesses have been uncovered throughout time. When the Key Reinstallation AttaCK (KRACK) issue was revealed (in 2016-2017 by Mathy Vanhoef of the University of Leuven), it demonstrated that WPA2 was not impregnable; KRACK is thought to attack any Wi-Fi-enabled device, including those with appropriate WPA2 implementations. This puts the security of a home or business Wi-Fi network in jeopardy. In this survey, the KRACK attack on the Wi-Fi WPA2 protocol will be investigated. It will attempt to define the WPA2 protocol, examine the WPA24-way handshake process, and investigate the KRACK vulnirability in the 4-way handshake process. In addition to this, the survey will demonstrate several potential solutions that have been offered in other studies. Moreover, this paper will make an attempt to demonstrate that the KRACK vulnerability is still a significant problem in Wi-Fi communication, despite the fact that the majority of vendors have announced that they already published their patches to fix the vulnerability. Furthermore, the improvement that WPA3 has over WPA2 in terms of defense against KRACK assaults and the reasons why it is not yet the ultimate solution will be highlighted in this survey. Finally, recommendations for the most effective measures that may be taken to defend against KRACK assaults will be given.